Geopriv C. Guenther
Internet-Draft H. Tschofenig
Expires: January 9, 2005 Siemens
July 11, 2004
An Extensible Markup Language (XML) Representation for Expressing
Geographic Location Information Policy Capabilities
draft-guenther-geopriv-policy-caps-00.txt
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Abstract
This specification defines a set of Extensible Markup Language (XML)
elements for expressing geographic location information policy
capabilities.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Structure of Geopriv Policy Capabilities . . . . . . . . . . . 5
4. XML Schema . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Example Document . . . . . . . . . . . . . . . . . . . . . . . 7
6. Security Considerations . . . . . . . . . . . . . . . . . . . 8
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
7.1 Namespace Registration . . . . . . . . . . . . . . . . . . 9
7.2 Supported Geopriv Permissions Schema Registration . . . . 9
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 10
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.1 Normative References . . . . . . . . . . . . . . . . . . . . 11
9.2 Informative References . . . . . . . . . . . . . . . . . . . 11
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 12
Intellectual Property and Copyright Statements . . . . . . . . 13
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1. Introduction
Authorization policies are an important component of presence
[RFC2778]. They allow the presentity to grant access to specific
pieces of information to watchers. Authorization policies haven been
designed to be extensible. For this reason
[I-D.rosenberg-simple-common-policy-caps] defines a generic
Extensible Markup Language (XML) based format for representing policy
capabilities. That format applies to many policy types, including
location and presence. This specification extends that one by
defining policy capabilities specific to geographic location
information. Those policy capabilities correspond to the conditions,
actions and transformations defined in [I-D.ietf-geopriv-policy].
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2. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
Furthermore, the terminology defined in [I-D.ietf-geopriv-policy] is
used.
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3. Structure of Geopriv Policy Capabilities
The structure of common policy capability documents is defined in
[I-D.rosenberg-simple-common-policy-caps]. In that specification,
each policy capability document has three components - a list of
supported conditions, a list of supported actions, and a list of
supported transformations. This specification merely extends that
document with the conditions, actions and transformations defined in
[I-D.ietf-geopriv-policy]. It does so by defining the following
empty elements:
civil-loc-condition
geospatial-loc-condition
civil-loc-transformation
set-retention
set-distribution
keep-rules
longitude-resolution
latitude-resolution
altitude-resolution
provide-timezone
Each of these elements indicates whether the respective attribute in
[I-D.ietf-geopriv-policy] is supported. All of these elements are
defined within the namespace:
urn:ietf:params:xml:ns:supported-geopriv-permissions
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4. XML Schema
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5. Example Document
The following document indicates that the identity, validity, and
sphere conditions are supported, each of which is defined in
[I-D.ietf-geopriv-common-policy]. It also indicates that the
geolocation-specific condition named geospatial-loc-condition is
supported. Support of the geolocation-specific transformations named
civil-loc-transformation, longitude-resolution and
latitude-resolution is indicated by the three child elements of the
element:
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6. Security Considerations
This specification does not introduce any new security considerations
beyond those discussed in [I-D.rosenberg-simple-common-policy-caps].
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7. IANA Considerations
This section registers a new XML namespace and a new XML schema with
IANA.
7.1 Namespace Registration
URI: urn:ietf:params:xml:ns:supported-geopriv-permissions
Registrant Contact: IETF Geopriv Working Group, Christian Guenther
(christian.guenther@siemens.com), Hannes Tschofenig
(hannes.tschofenig@siemens.com).
XML:
BEGIN
Supported Geopriv Permissions
Namespace for Supported Geopriv Permissions
urn:ietf:params:xml:ns:supported-geopriv-permissions
See RFCXXXX.
END
7.2 Supported Geopriv Permissions Schema Registration
URI: Please assign.
Registrant Contact: IETF Geopriv Working Group, Christian Guenther
(christian.guenther@siemens.com), Hannes Tschofenig
(hannes.tschofenig@siemens.com).
XML: The XML schema to be registered is contained in section Section
4. Its first line is
and its last line is
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8. Acknowledgments
The authors would like to thank Jonathan Rosenberg whose Presence
Policy Capabilities document [I-D.rosenberg-simple-pres-policy-caps]
served as template for this document.
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9. References
9.1 Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", March 1997.
[RFC2778] Day, M., Rosenberg, J. and H. Sugano, "A Model for
Presence and Instant Messaging", February 2000.
[RFC3688] Mealling, M., "The IETF XML Registry", January 2004.
9.2 Informative References
[I-D.ietf-geopriv-common-policy]
Schulzrinne, H., Morris, J., Tschofenig, H., Polk, J. and
J. Rosenberg, "A Document Format for Expressing Privacy
Preferences", draft-ietf-geopriv-common-policy-01 (work in
progress), July 2004,
.
[I-D.ietf-geopriv-policy]
Schulzrinne, H., Morris, J., Tschofenig, H., Cuellar, J.
and J. Polk, "Geopriv Policy",
draft-ietf-geopriv-policy-01 (work in progress), February
2004, .
[I-D.rosenberg-simple-common-policy-caps]
Rosenberg, J., "An Extensible Markup Language (XML)
Representation for Expressing Policy Capabilities",
draft-rosenberg-simple-common-policy-caps-00 (work in
progress), February 2004,
.
[I-D.rosenberg-simple-pres-policy-caps]
Rosenberg, J., "An Extensible Markup Language (XML)
Representation for Expressing Presence Policy
Capabilities", draft-rosenberg-simple-pres-policy-caps-00
(work in progress), February 2004,
.
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Authors' Addresses
Christian Guenther
Siemens
Otto-Hahn-Ring 6
Munich, Bayern 81739
Germany
EMail: christian.guenther@siemens.com
Hannes Tschofenig
Siemens
Otto-Hahn-Ring 6
Munich, Bayern 81739
Germany
EMail: hannes.tschofenig@siemens.com
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